The type of repair that a technician performs will greatly influence the AC repair cost. A warranty may also help with the overall AC repair bill.
A service technician will often check the air conditioning system for minor problems that are easy to fix. AC Repair North Hollywood can even prevent those small issues from becoming bigger ones down the road.
The condenser coil is a major component of your air conditioner. It helps your AC absorb and dump heat from your home, which blows into the outside air with a fan. But if your coil’s cooling fins are damaged, it’ll make your AC work harder and longer to cool your home.
Condenser coils have hard aluminum “fins” that facilitate refrigerant heat transfer. These fins are usually arranged in parallel strips. These dents, bendings, or crushings restrict refrigerant flow across the coil, significantly impacting performance and efficiency. They can easily become flattened or distorted from mechanical damage, such as being hit with a lawn mower blade or subjected to high-pressure surface cleaning.
The fins are also susceptible to corrosion and rust, whether caused by an accident or by normal wear and tear. You should regularly spray down your outdoor unit with a hose to remove dirt, leaves, and other debris. If there’s more serious rust or corrosion, you’ll need to contact an HVAC professional for help.
Even a minor amount of damage to the fins can reduce its ability to absorb and release heat from your home, making your system work harder and costing you more money for energy use. To prevent future damage, homeowners should install security gates or fences around the outdoor unit, and take care when using landscaping tools or roof maintenance equipment near it.
If the fins of your coil are extensively bent, the heat transfer process is impeded, leading to reduced efficiency and potentially causing the compressor to fail. In this case, the impacted coil is considered unusable and will need replacement.
Fin damage from external sources is more common than many people realize. The fins of a ground-mounted AC unit are especially vulnerable to impacts from lawn mowers and other equipment, but the same kind of damage can also occur from direct human contact (such as climbing over an outdoor unit) or vandalism. If the coil’s fins are damaged to a degree that they block much of its surface area, they should be repaired or replaced immediately.
Capacitors are one of the most critical components in your air conditioning system. They provide extra energy to start your unit and help it to run throughout its cycle. If your capacitor starts to fail, it can cause the unit to stop working. A bad capacitor can also lead to an expensive repair bill.
A capacitor looks a bit like an ice cream sandwich, with two conducting plates and a dielectric between them. The outer wafers of the capacitor are the terminals, and the dielectric can be rubber, paper, or ceramic. The capacitor also has a terminal that connects it to the circuit, and a voltage rating is printed on its body. It’s important to avoid touching a capacitor because it holds an electrical charge even when it’s not in use, and this can give you a shock. A professional can test a capacitor’s voltage rating by connecting the terminals to a multimeter and reading the value.
The capacitor in your air conditioning unit is susceptible to damage caused by excessive heat. Because it’s deep inside the unit, excess heat can cause it to overheat, leading to a loss of its ability to hold an electric charge. If this happens, the capacitor might smoke and have an acrid smell due to the chemicals within it leaking out. Over time, sustained high temperatures can wear down the capacitor and cause it to stop functioning altogether.
If you suspect your AC capacitor is failing, an HVAC technician will be able to confirm this using a few tests. First, they’ll discharge the capacitor with a bleeder resistor to make sure it’s no longer holding an electric charge. Then, they’ll check its capacitance rating by comparing it to the manufacturer’s recommended voltage reading.
An HVAC technician will also inspect the capacitor for visual clues. These might include bulging, cracks, and fluid leaking from the capacitor’s casing. Replacing an AC capacitor is a simple process that most professionals can complete in about an hour. Once they’ve identified the problem, they’ll disconnect the old capacitor, remove it, and install the new one.
The compressor is the heart of your air conditioning unit. If it starts to go bad, you’re going to start having problems with your home cooling. You may even need to replace the whole AC unit!
There are many different ways that your compressor can become faulty. One way is if it suffers a short in its wiring. This can happen if wires get hot from overheating or a power surge. The problem can also be caused by motor vibrations that wear out the windings and cause shorts.
Another common way that your compressor can become faulty is if the electrical relay switch wears out. This can be a tricky problem to diagnose and repair, so it’s usually best left to a professional.
A faulty compressor can also develop due to other issues like incorrect suction line size or bad installation work. If the suction line is too long or too short, it can build pressure and overheat the compressor. This is another issue that’s better left to an HVAC technician, as they know how to install the right suction line for your compressor.
Another sign that your compressor isn’t working properly is if it keeps blowing warm air. The compressor is supposed to circulate cool refrigerant through the evaporator coil, so if it can’t do this, you won’t be getting any cool air from your vents.
Other signs that the compressor is faulty include unusual clunking or rattling sounds when your AC turns on. If you hear these noises, turn off your air conditioner and call a professional immediately. If you ignore these signs, the compressor could be damaged further and lead to a costly replacement. It’s also very important to never attempt any DIY electrical repairs, especially if they involve the compressor. This can be dangerous and lead to a fatal electrical fire. A NATE-certified HVAC professional has the training and tools necessary to safely handle these types of electrical repairs. They can also diagnose any underlying issues that might be causing your compressor to fail. They can recommend the most cost-effective and efficient solution for you.
A faulty fan can be a serious problem that requires professional AC repair. A defective fan may also indicate that there is another issue with the system, such as a damaged compressor or a bad capacitor. In some cases, the fan might simply need a new motor or a new capacitor. These parts are expensive and difficult to replace, so it is important to call an HVAC technician as soon as you notice the problem.
A defective capacitor can cause the fan to stop spinning because it is no longer able to produce the necessary power signals for the motor to spin. This is a common problem with older air conditioning units, and it can be very difficult to diagnose for the untrained eye. A trained professional will be able to use a voltmeter to test the output of the capacitor and determine if it is defective.
Before attempting to check your capacitor, make sure that the electricity to the unit is completely cut off. This can be done by turning off the power at either the disconnect switch or the breaker box. You can then find the service panel on your AC unit and look for a cylindrical component that has two or three prongs. This is the capacitor, and it can be very dangerous to touch if the electricity is still flowing.
It is also possible that the breaker was simply tripped by a power surge, and this can be easily fixed by flipping it back on. However, if the breaker keeps tripping, this is usually an indication of another issue that should be addressed by a qualified technician.
A faulty fan can also be caused by dirt and debris that is causing the motor to contact other components. You can try removing any debris that is caught on the fan to see if this solves the problem. If you hear a rattling sound while the fan is spinning, this means that it is contacting something and could be damaging the motor or compressor. If this does not solve the problem, you will need to call a technician to inspect the system.